Anti-disassembly lead sealing device of electronic price computing scale

Abstract

The utility model discloses an anti-disassembly lead sealing device of an electronic price computing scale, and belongs to the technical field of electronic price computing scales. An electronic price computing scale anti-disassembly lead sealing device comprises an upper shell, a lower shell, a connecting column, a connecting groove, a connecting part, a clamping column, an annular clamping groove, an inserting column and an inclined piece. According to the utility model, through a clamping structure composed of the connecting part, the clamping column, the annular clamping groove, the inserting column and the inclined sheet, the lead seal covers between each connecting column and the corresponding connecting groove, so that the upper shell and the lower shell are further firmly connected together; the bottom of the inserting column needs to be punctured to slide along the surface of the clamping column, the inclined piece is broken, then the clamping column and the connecting part are snapped, once the inclined piece, the clamping column and the connecting part are broken, effective clamping connection with the annular clamping groove cannot be formed, obvious traces can be left in the disassembling process, and detection personnel can conveniently and rapidly perceive the traces.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic price computing scales, in particular to an anti-tampering lead sealing device for electronic price computing scales. Background Art

[0002] As an indispensable measuring tool in modern commercial activities, the accuracy and fairness of electronic price scales are directly related to the fairness of transactions and the rights and interests of consumers. However, in actual applications, some unscrupulous merchants, in order to seek improper benefits, will take various means to illegally modify or adjust electronic price scales in order to achieve the purpose of falsely reporting prices and deceiving consumers. This behavior not only seriously damages the interests of consumers, but also destroys the fair competition environment in the market.

[0003] At present, the anti-tampering means of traditional electronic price computing scales mainly rely on the physical method of anti-tear labels, which are pasted on the outside of the screw holes of the scale body. This method is easy to be forged and replaced, making tampering difficult to detect. At the same time, once the anti-tear label is damaged, it is often difficult to find it in time, which provides an opportunity for unscrupulous merchants. Therefore, in response to this problem, the utility model proposes an anti-tampering lead sealing device for electronic price computing scales. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an anti-tampering lead sealing device for electronic price computing scales which can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-tampering lead sealing device for an electronic price computing scale, comprising an upper shell and a lower shell connected to the bottom of the upper shell, and also comprising a plurality of connecting columns fixedly connected to the inner surface of the upper shell, the bottom of the lower shell is connected with a plurality of connecting grooves corresponding to the connecting columns, a connecting portion is provided at the bottom port of the connecting column, a clamping column is fixed at one end of the connecting portion located inside the connecting groove, an annular clamping groove is opened on the clamping column, a plug-in column is slid between the outer surface of the plug-in column and the inner wall of the connecting groove, and a plurality of inclined sheets are fixed to the inner wall of the plug-in column, all of which are in conflict with the bottom wall of the annular clamping groove.

[0006] Preferably, a circular connecting block is fixed to one end of the connecting portion extending into the corresponding interior of the connecting column cavity, and the circular connecting block is fixedly connected to the inner wall of the cavity of the connecting column.

[0007] Preferably, when the connecting portion is a spring structure and the inclined piece is made of an elastic rubber material, the elastic force of the connecting portion is greater than the elastic force of the inclined piece.

[0008] Preferably, the connecting groove includes an upper circular section, a middle circular section, and a lower circular section. The inner wall diameter of the upper circular section is smaller than the inner wall diameters corresponding to the middle circular section and the lower circular section. The inner wall diameter of the middle circular section is smaller than the inner wall diameter of the lower circular section. The top of the clamping post is in contact with the top wall of the middle circular section, and the inserting post is in contact between the middle circular section and the lower circular section.

[0009] Preferably, the surface diameter of the top of the clamping post is larger than the inner wall diameter of the upper circular section and smaller than the inner wall diameter of the middle circular section.

[0010] Preferably, the annular edge extending from the outer contour edge of the bottom of the inserting post is in contact with the inner wall of the lower circular section.

[0011] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art:

[0012] In the present utility model, the clamping structure composed of the connecting part, the clamping post, the annular clamping groove, the inserting post, and the inclined piece is used to seal the lead between each connecting column and the corresponding connecting groove. This is not only to further firmly connect the upper shell and the lower shell together. At the same time, when disassembling, it is necessary to pierce the bottom of the inserting post with a tool and then pull the inserting post to slide along the surface of the clamping post first. After the inclined piece breaks, the inserting post is disengaged from the connecting groove. Subsequently, by pulling the clamping post to break with the bottom end of the connecting part, the disassembly between the upper shell and the lower shell can be realized. It should be noted that once the inclined piece, the clamping post, and the connecting part are all broken, they cannot form an effective clamping with the annular clamping groove, and obvious marks will be left during the disassembly process, which is convenient for the inspection personnel to quickly detect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the connection structure between the upper shell and the lower shell of an anti-tampering lead seal device for an electronic weighing scale proposed by the present utility model;

[0014] Figure 2 It is a schematic diagram of the connection structure between the connecting column and the connecting groove of an anti-tampering lead seal device for an electronic weighing scale proposed by the present utility model;

[0015] Figure 3 It is a schematic diagram of the upper shell structure of an anti-tampering lead seal device for an electronic weighing scale proposed by the present utility model;

[0016] Figure 4 It is a schematic diagram of the connecting groove structure of an anti-tampering lead seal device for an electronic weighing scale proposed by the present utility model;

[0017] Figure 5 For the present utility model Figure 1 The partial structure schematic diagram at position A;

[0018] Figure 6 Schematic cross-sectional structure view of the insertion column of an anti-tampering lead seal device for an electronic price scale proposed by the present utility model;

[0019] Figure 7 Schematic exploded connection structure view of the clamping column and the insertion column of an anti-tampering lead seal device for an electronic price scale proposed by the present utility model;

[0020] Figure 8 Front view structure schematic diagram of an anti-tampering lead seal device for an electronic price scale proposed by the present utility model.

[0021] In the figure: 1. Upper shell; 11. Connecting column; 2. Lower shell; 21. Connecting groove; 211. Upper circular section; 212. Middle circular section; 213. Lower circular section; 3. Connecting part; 31. Clamping column; 32. Annular clamping groove; 33. Insertion column; 34. Inclined piece; 35. Circular connecting block. Specific implementation manner

[0022] The following further describes the present invention in detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it according to the description in the specification.

[0023] It should be understood that the terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0024] In the description of the present invention, the orientation or positional relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] Refer to Figures 1-8 , an anti-tampering lead seal device for an electronic price scale, includes an upper shell 1 and a lower shell 2 connected to the bottom of the upper shell 1. It further includes a plurality of connecting columns 11 fixedly connected to the inner surface of the upper shell 1. A plurality of connecting grooves 21 corresponding to the connecting columns 11 are communicated with the bottom of the lower shell 2. A connecting part 3 is provided at the bottom port of the connecting column 11. A clamping column 31 is fixed at one end of the connecting part 3 located inside the connecting groove 21. An annular clamping groove 32 is formed on the clamping column 31. An insertion column 33 slides between the outer surface of the clamping column 31 and the inner wall of the connecting groove 21. A plurality of inclined pieces 34 that all abut against the bottom wall of the annular clamping groove 32 are fixed to the inner wall of the insertion column 33.

[0026] Among them, the connection groove 21 includes an upper circular section 211, a middle circular section 212, and a lower circular section 213. The inner wall diameters of the upper circular section 211 are all smaller than the corresponding inner wall diameters of the middle circular section 212 and the lower circular section 213. The inner wall diameter of the middle circular section 212 is smaller than that of the lower circular section 213. The top of the clamping post 31 fits against the top wall of the middle circular section 212. The insertion post 33 fits between the middle circular section 212 and the lower circular section 213. The surface diameter of the top of the clamping post 31 is larger than the inner wall diameter of the upper circular section 211, and the surface diameter of the top of the clamping post 31 is smaller than the inner wall diameter of the middle circular section 212. The annular edge extending from the outer contour edge of the bottom of the insertion post 33 fits against the inner wall of the lower circular section 213. Such a design helps to limit the clamping post 31 connected by the connecting portion 3 in the connection groove 21 of the lower housing 2.

[0027] For the electronic weighing scale with the above technical solution, during the assembly process, first, the upper housing 1 and the lower housing 2 are preliminarily fixed by screws. Subsequently, the plastic clamping structure lead seal composed of the connecting portion 3, the clamping post 31, the annular clamping groove 32, the insertion post 33, and the inclined piece 34 is covered on the joint of the connecting column 11 and the connection groove 21 to ensure a tight connection between the two. During use, since the clamping post 31 is limited between the middle circular section 212 and the lower circular section 213 of the connection groove 21 by the connecting portion 3 fixed on the inner wall of the connecting column 11, in this way, the clamping post 31 forms a stable support structure in the connection groove 21. When the insertion post 33 starts from the lower circular section 213 of the connection groove 21 and is pressed upward unidirectionally along the bottom of the clamping post 31, the four inclined pieces 34 will also slide along the bottom of the clamping post 31 and finally abut against the bottom wall of the annular clamping groove 32, thereby realizing the covering of the plastic clamping structure lead seal on the joint of the connecting column 11 and the connection groove 21.

[0028] When disassembling or repairing the electronic weighing scale, it is necessary to first remove the screws in the holes connecting the upper housing 1 and the lower housing 2. At the same time, due to the relatively thin plastic design of the insertion post 33, it is convenient to use tools to pierce through the bottom of the insertion post 33 and pull the insertion post 33 to slide downward along the surface of the clamping post 31. During this process, due to the continuous downward pulling force on the insertion post 33, the inclined piece 34 installed on the inner wall of the insertion post 33 and abutting against the bottom wall of the annular clamping groove 32 breaks. Subsequently, the insertion post 33 will continue to slide along the surface of the clamping post 31 until it completely exits the connection groove 21. Finally, by further pulling, the clamping post 31 will separate from the bottom end of the connecting portion 3, and the disassembly between the upper housing 1 and the lower housing 2 can be realized, providing convenience for subsequent maintenance.

[0029] In addition, it is worth noting that after multiple inclined pieces 34 inside the insertion post 33, the clamping post 31, and the connecting part 3 are broken, they can no longer form an effective clamping with the annular clamping groove 32 on the clamping post 31. Therefore, it can be determined that the connection between the upper shell 1 and the lower shell 2 of this electronic price scale has been damaged. This design not only increases the difficulty of anti-disassembly but also enables any illegal modification or adjustment behavior to be detected in a timely manner.

[0030] It should also be noted that the clamping structure composed of the connecting part 3, the clamping post 31, the annular clamping groove 32, the insertion post 33, and the inclined piece 34 is not limited to electronic price scales in its application scope. In fact, due to its connection stability and anti-illegal disassembly characteristics, this structure can also be widely applied to various electronic devices that require high security and stability, such as security monitoring devices, precision measuring instruments, high-end communication devices, and certain specific industrial control devices, etc. In these applications, this clamping structure can ensure that the outer shell or other key components of the device maintain a tight and firm connection under normal use conditions, preventing loosening or damage caused by external factors such as vibration and impact. At the same time, the increased difficulty of illegal disassembly of this clamping structure also provides a strong guarantee for preventing the device from being disassembled, modified, or adjusted without authorization, thereby helping to maintain the integrity and security of the device.

[0031] Furthermore, referring to Figure 2 and Figure 5 , at one end corresponding to the inside of the cavity of the connecting column 11 where the connecting part 3 extends, a circular connecting block 35 is fixed. The circular connecting block 35 is fixedly connected to the inner wall of the cavity of the connecting column 11. The purpose of this design is to stably fix the connecting part 3 on the upper shell 1 and improve the stability of the connecting part 3 during use.

[0032] In this technical solution, when the connecting part 3 is a spring structure and the inclined piece 34 is made of elastic rubber material, the elastic force of the connecting part 3 is greater than that of the inclined piece 34. In this way, the connecting part 3 can maintain a tight fit between the clamping post 31 and the insertion post 33 through its own elastic force. At the same time, when the inclined piece 34 is broken, the elastic force of the connecting part 3 can also ensure that the clamping post 31 will not fall off or become loose due to the loss of support.

[0033] Regarding the electronic price scale described in the above technical solution, it should also be supplemented that traceability information such as production date, production batch, and manufacturer's identifier can be laser engraved on the front of the device, which can conveniently track and record the source and circulation of the device.

[0034] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes, shall be covered by the protection scope of the present utility model.

Claims

1. An anti-tampering lead seal device for an electronic weighing scale, comprising: an upper housing (1) and a lower housing (2) connected to the bottom of the upper housing (1), It is characterized in that further comprising: a plurality of connecting columns (11) fixedly connected to the inner surface of the upper housing (1), and a plurality of connecting grooves (21) corresponding to the connecting columns (11) are communicated with the bottom of the lower housing (2); a connecting portion (3) is provided at the bottom port of the connecting column (11), a clamping column (31) is fixed at one end of the connecting portion (3) located inside the connecting groove (21), an annular clamping groove (32) is formed on the clamping column (31), an inserting column (33) slides between the outer surface of the clamping column (31) and the inner wall of the connecting groove (21), and a plurality of inclined pieces (34) which are all in contact with the bottom wall of the annular clamping groove (32) are fixed on the inner wall of the inserting column (33).

2. The anti-tampering lead seal device for an electronic weighing scale according to claim 1, characterized in that, One end of the connecting portion (3) extending into the corresponding cavity of the connecting column (11) is fixed with a circular connecting block (35), and the circular connecting block (35) is fixedly connected to the inner wall of the cavity of the connecting column (11).

3. An anti-tampering lead seal device for an electronic weighing scale according to claim 1, characterized in that, When the connecting portion (3) is of a spring structure and the inclined pieces (34) are made of elastic rubber material, the elastic force of the connecting portion (3) is greater than the elastic force of the inclined pieces (34).

4. An anti-tampering lead seal device for an electronic weighing scale according to claim 1, characterized in that, The connecting groove (21) includes an upper circular section (211), a middle circular section (212) and a lower circular section (213), the inner wall diameters of the upper circular section (211) are all smaller than the corresponding inner wall diameters of the middle circular section (212) and the lower circular section (213), the inner wall diameter of the middle circular section (212) is smaller than the inner wall diameter of the lower circular section (213), the top of the clamping column (31) is in contact with the top wall of the middle circular section (212), and the inserting column (33) is in contact between the middle circular section (212) and the lower circular section (213).

5. An anti-tampering lead seal device for an electronic weighing scale according to claim 4, characterized in that, The surface diameter of the top of the clamping column (31) is larger than the inner wall diameter of the upper circular section (211), and the surface diameter of the top of the clamping column (31) is smaller than the inner wall diameter of the middle circular section (212).

6. The anti-tampering lead seal device for an electronic price scale according to claim 4, wherein, The annular edge extending from the outer contour edge of the bottom of the inserting column (33) is in contact with the inner wall of the lower circular section (213).

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